Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes
Abstract Conversion‐type transition‐metal sulfides (CT‐TMSs) have been extensively studied as the anode of Li/Na/K‐ion batteries due to their high theoretical capacity. An issue with the use of the material in the battery is that a large capacity difference is commonly observed. However, the underly...
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Wiley
2024-12-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202410653 |
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| author | Kunxiong Zheng Yongbiao Mu Meisheng Han Jie Liu Zhiyu Zou Hengyuan Hu Youqi Chu Fenghua Yu Wenjia Li Lei Wei Lin Zeng Tianshou Zhao |
| author_facet | Kunxiong Zheng Yongbiao Mu Meisheng Han Jie Liu Zhiyu Zou Hengyuan Hu Youqi Chu Fenghua Yu Wenjia Li Lei Wei Lin Zeng Tianshou Zhao |
| author_sort | Kunxiong Zheng |
| collection | DOAJ |
| description | Abstract Conversion‐type transition‐metal sulfides (CT‐TMSs) have been extensively studied as the anode of Li/Na/K‐ion batteries due to their high theoretical capacity. An issue with the use of the material in the battery is that a large capacity difference is commonly observed. However, the underlying mechanism leading to the problem is still unknown. Here, the large capacity difference mechanisms of CT‐TMSs anodes in the Li/Na/K‐ion storage are elucidated, which arises from the difference in conversion degree and size of conversion products. Specifically, the increase in ionic radius will cause the increase in insertion‐reaction ion diffuse energy barrier and conversion‐reaction Gibbs free energies of phase transformation to decrease reaction kinetics, which causes a decrease in conversion degree and an increase in size of conversion products, thus leading to reduction in capacity. The increase in size and the decrease in the amount of conversion products inevitably reduce the amount of spin‐polarized electrons injection into Fe and corresponding ions storage amount into sulfides during the ion‐electron decoupling storage, thus reducing the capacity. The research clarifies the capacity difference mechanisms of CT‐TMSs anodes in Li/Na/K storage, providing valuable insights for designing Li/Na/K storage high‐capacity anodes. |
| format | Article |
| id | doaj-art-dfa5568f94b0489caeb8cea6cefe3e7b |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-dfa5568f94b0489caeb8cea6cefe3e7b2024-12-27T13:00:47ZengWileyAdvanced Science2198-38442024-12-011148n/an/a10.1002/advs.202410653Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides AnodesKunxiong Zheng0Yongbiao Mu1Meisheng Han2Jie Liu3Zhiyu Zou4Hengyuan Hu5Youqi Chu6Fenghua Yu7Wenjia Li8Lei Wei9Lin Zeng10Tianshou Zhao11Shenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaShenzhen Key Laboratory of Advanced Energy Storage Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 ChinaAbstract Conversion‐type transition‐metal sulfides (CT‐TMSs) have been extensively studied as the anode of Li/Na/K‐ion batteries due to their high theoretical capacity. An issue with the use of the material in the battery is that a large capacity difference is commonly observed. However, the underlying mechanism leading to the problem is still unknown. Here, the large capacity difference mechanisms of CT‐TMSs anodes in the Li/Na/K‐ion storage are elucidated, which arises from the difference in conversion degree and size of conversion products. Specifically, the increase in ionic radius will cause the increase in insertion‐reaction ion diffuse energy barrier and conversion‐reaction Gibbs free energies of phase transformation to decrease reaction kinetics, which causes a decrease in conversion degree and an increase in size of conversion products, thus leading to reduction in capacity. The increase in size and the decrease in the amount of conversion products inevitably reduce the amount of spin‐polarized electrons injection into Fe and corresponding ions storage amount into sulfides during the ion‐electron decoupling storage, thus reducing the capacity. The research clarifies the capacity difference mechanisms of CT‐TMSs anodes in Li/Na/K storage, providing valuable insights for designing Li/Na/K storage high‐capacity anodes.https://doi.org/10.1002/advs.202410653capacity difference mechanismsconversion‐type transition‐metal sulfides anodeIn‐situ magnetometryLi/Na/K‐ion batteriesspin‐polarized electrons |
| spellingShingle | Kunxiong Zheng Yongbiao Mu Meisheng Han Jie Liu Zhiyu Zou Hengyuan Hu Youqi Chu Fenghua Yu Wenjia Li Lei Wei Lin Zeng Tianshou Zhao Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes Advanced Science capacity difference mechanisms conversion‐type transition‐metal sulfides anode In‐situ magnetometry Li/Na/K‐ion batteries spin‐polarized electrons |
| title | Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes |
| title_full | Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes |
| title_fullStr | Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes |
| title_full_unstemmed | Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes |
| title_short | Investigations of Mechanisms Leading to Capacity Differences in Li/Na/K‐Ion Batteries with Conversion‐Type Transition‐Metal Sulfides Anodes |
| title_sort | investigations of mechanisms leading to capacity differences in li na k ion batteries with conversion type transition metal sulfides anodes |
| topic | capacity difference mechanisms conversion‐type transition‐metal sulfides anode In‐situ magnetometry Li/Na/K‐ion batteries spin‐polarized electrons |
| url | https://doi.org/10.1002/advs.202410653 |
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